
"""simple docstring"""






import collections
import importlib.util
import os
import re
from pathlib import Path


UpperCAmelCase        =				"""src/transformers"""


# Matches is_xxx_available()
UpperCAmelCase        =				re.compile(r"""is\_([a-z_]*)_available()""")
# Catches a one-line _import_struct = {xxx}
UpperCAmelCase        =				re.compile(r"""^_import_structure\s+=\s+\{([^\}]+)\}""")
# Catches a line with a key-values pattern: "bla": ["foo", "bar"]
UpperCAmelCase        =				re.compile(r"""\s+\"\S*\":\s+\[([^\]]*)\]""")
# Catches a line if not is_foo_available
UpperCAmelCase        =				re.compile(r"""^\s*if\s+not\s+is\_[a-z_]*\_available\(\)""")
# Catches a line _import_struct["bla"].append("foo")
UpperCAmelCase        =				re.compile(r"""^\s*_import_structure\[\"\S*\"\]\.append\(\"(\S*)\"\)""")
# Catches a line _import_struct["bla"].extend(["foo", "bar"]) or _import_struct["bla"] = ["foo", "bar"]
UpperCAmelCase        =				re.compile(r"""^\s*_import_structure\[\S*\](?:\.extend\(|\s*=\s+)\[([^\]]*)\]""")
# Catches a line with an object between quotes and a comma:     "MyModel",
UpperCAmelCase        =				re.compile("""^\s+\"([^\"]+)\",""")
# Catches a line with objects between brackets only:    ["foo", "bar"],
UpperCAmelCase        =				re.compile("""^\s+\[([^\]]+)\]""")
# Catches a line with from foo import bar, bla, boo
UpperCAmelCase        =				re.compile(r"""\s+from\s+\S*\s+import\s+([^\(\s].*)\n""")
# Catches a line with try:
UpperCAmelCase        =				re.compile(r"""^\s*try:""")
# Catches a line with else:
UpperCAmelCase        =				re.compile(r"""^\s*else:""")




def __magic_name__	(				_lowerCamelCase:		Optional[int]			)					->						int:

	'''simple docstring'''




	if _re_test_backend.search(_lowerCamelCase			) is None:
		return None
	lowerCAmelCase												=  [b[0] for b in _re_backend.findall(_lowerCamelCase			)]
	backends.sort()
	return "_and_".join(_lowerCamelCase			)




def __magic_name__	(				_lowerCamelCase:		Union[str, Any]			)					->						Union[str, Any]:

	'''simple docstring'''




	with open(_lowerCamelCase,					'''r''',					encoding='''utf-8''',					newline='''\n'''			) as f:
		lowerCAmelCase												=  f.readlines()

	lowerCAmelCase												=  0
	while line_index < len(_lowerCamelCase			) and not lines[line_index].startswith('''_import_structure = {'''			):
		line_index += 1

	# If this is a traditional init, just return.
	if line_index >= len(_lowerCamelCase			):
		return None

	# First grab the objects without a specific backend in _import_structure
	lowerCAmelCase												=  []
	while not lines[line_index].startswith('''if TYPE_CHECKING'''			) and find_backend(lines[line_index]			) is None:
		lowerCAmelCase												=  lines[line_index]
		# If we have everything on a single line, let's deal with it.
		if _re_one_line_import_struct.search(_lowerCamelCase			):
			lowerCAmelCase												=  _re_one_line_import_struct.search(_lowerCamelCase			).groups()[0]
			lowerCAmelCase												=  re.findall('''\[([^\]]+)\]''',					_lowerCamelCase			)
			for imp in imports:
				objects.extend([obj[1:-1] for obj in imp.split(''', '''			)]			)
			line_index += 1
			continue
		lowerCAmelCase												=  _re_import_struct_key_value.search(_lowerCamelCase			)
		if single_line_import_search is not None:
			lowerCAmelCase												=  [obj[1:-1] for obj in single_line_import_search.groups()[0].split(''', '''			) if len(_lowerCamelCase			) > 0]
			objects.extend(_lowerCamelCase			)
		elif line.startswith(''' ''' * 8 + '''"'''			):
			objects.append(line[9:-3]			)
		line_index += 1

	lowerCAmelCase												=  {'''none''': objects}
	# Let's continue with backend-specific objects in _import_structure
	while not lines[line_index].startswith('''if TYPE_CHECKING'''			):
		# If the line is an if not is_backend_available, we grab all objects associated.
		lowerCAmelCase												=  find_backend(lines[line_index]			)
		# Check if the backend declaration is inside a try block:
		if _re_try.search(lines[line_index - 1]			) is None:
			lowerCAmelCase												=  None

		if backend is not None:
			line_index += 1

			# Scroll until we hit the else block of try-except-else
			while _re_else.search(lines[line_index]			) is None:
				line_index += 1

			line_index += 1

			lowerCAmelCase												=  []
			# Until we unindent, add backend objects to the list
			while len(lines[line_index]			) <= 1 or lines[line_index].startswith(''' ''' * 4			):
				lowerCAmelCase												=  lines[line_index]
				if _re_import_struct_add_one.search(_lowerCamelCase			) is not None:
					objects.append(_re_import_struct_add_one.search(_lowerCamelCase			).groups()[0]			)
				elif _re_import_struct_add_many.search(_lowerCamelCase			) is not None:
					lowerCAmelCase												=  _re_import_struct_add_many.search(_lowerCamelCase			).groups()[0].split(''', '''			)
					lowerCAmelCase												=  [obj[1:-1] for obj in imports if len(_lowerCamelCase			) > 0]
					objects.extend(_lowerCamelCase			)
				elif _re_between_brackets.search(_lowerCamelCase			) is not None:
					lowerCAmelCase												=  _re_between_brackets.search(_lowerCamelCase			).groups()[0].split(''', '''			)
					lowerCAmelCase												=  [obj[1:-1] for obj in imports if len(_lowerCamelCase			) > 0]
					objects.extend(_lowerCamelCase			)
				elif _re_quote_object.search(_lowerCamelCase			) is not None:
					objects.append(_re_quote_object.search(_lowerCamelCase			).groups()[0]			)
				elif line.startswith(''' ''' * 8 + '''"'''			):
					objects.append(line[9:-3]			)
				elif line.startswith(''' ''' * 12 + '''"'''			):
					objects.append(line[13:-3]			)
				line_index += 1

			lowerCAmelCase												=  objects
		else:
			line_index += 1

    # At this stage we are in the TYPE_CHECKING part, first grab the objects without a specific backend
	lowerCAmelCase												=  []
	while (
	    line_index < len(_lowerCamelCase			)
	    and find_backend(lines[line_index]			) is None
	    and not lines[line_index].startswith('''else'''			)
	):
		lowerCAmelCase												=  lines[line_index]
		lowerCAmelCase												=  _re_import.search(_lowerCamelCase			)
		if single_line_import_search is not None:
			objects.extend(single_line_import_search.groups()[0].split(''', '''			)			)
		elif line.startswith(''' ''' * 8			):
			objects.append(line[8:-2]			)
		line_index += 1

	lowerCAmelCase												=  {'''none''': objects}
	# Let's continue with backend-specific objects
	while line_index < len(_lowerCamelCase			):
		# If the line is an if is_backend_available, we grab all objects associated.
		lowerCAmelCase												=  find_backend(lines[line_index]			)
		# Check if the backend declaration is inside a try block:
		if _re_try.search(lines[line_index - 1]			) is None:
			lowerCAmelCase												=  None

		if backend is not None:
			line_index += 1

			# Scroll until we hit the else block of try-except-else
			while _re_else.search(lines[line_index]			) is None:
				line_index += 1

			line_index += 1

			lowerCAmelCase												=  []
			# Until we unindent, add backend objects to the list
			while len(lines[line_index]			) <= 1 or lines[line_index].startswith(''' ''' * 8			):
				lowerCAmelCase												=  lines[line_index]
				lowerCAmelCase												=  _re_import.search(_lowerCamelCase			)
				if single_line_import_search is not None:
					objects.extend(single_line_import_search.groups()[0].split(''', '''			)			)
				elif line.startswith(''' ''' * 12			):
					objects.append(line[12:-2]			)
				line_index += 1

			lowerCAmelCase												=  objects
		else:
			line_index += 1

	return import_dict_objects, type_hint_objects




def __magic_name__	(				_lowerCamelCase:		Union[str, Any],					_lowerCamelCase:		Union[str, Any]			)					->						List[Any]:

	'''simple docstring'''




	def find_duplicates(_lowerCamelCase:		Any			):
		return [k for k, v in collections.Counter(_lowerCamelCase			).items() if v > 1]

	if list(import_dict_objects.keys()			) != list(type_hint_objects.keys()			):
		return ["Both sides of the init do not have the same backends!"]

	lowerCAmelCase												=  []
	for key in import_dict_objects.keys():
		lowerCAmelCase												=  find_duplicates(import_dict_objects[key]			)
		if duplicate_imports:
			errors.append(F"""Duplicate _import_structure definitions for: {duplicate_imports}"""			)
		lowerCAmelCase												=  find_duplicates(type_hint_objects[key]			)
		if duplicate_type_hints:
			errors.append(F"""Duplicate TYPE_CHECKING objects for: {duplicate_type_hints}"""			)

		if sorted(set(import_dict_objects[key]			)			) != sorted(set(type_hint_objects[key]			)			):
			lowerCAmelCase												=  '''base imports''' if key == '''none''' else F"""{key} backend"""
			errors.append(F"""Differences for {name}:"""			)
			for a in type_hint_objects[key]:
				if a not in import_dict_objects[key]:
					errors.append(F"""  {a} in TYPE_HINT but not in _import_structure."""			)
			for a in import_dict_objects[key]:
				if a not in type_hint_objects[key]:
					errors.append(F"""  {a} in _import_structure but not in TYPE_HINT."""			)
	return errors




def __magic_name__	(				)					->						Union[str, Any]:

	'''simple docstring'''




	lowerCAmelCase												=  []
	for root, _, files in os.walk(_lowerCamelCase			):
		if "__init__.py" in files:
			lowerCAmelCase												=  os.path.join(_lowerCamelCase,					'''__init__.py'''			)
			lowerCAmelCase												=  parse_init(_lowerCamelCase			)
			if objects is not None:
				lowerCAmelCase												=  analyze_results(*_lowerCamelCase			)
				if len(_lowerCamelCase			) > 0:
					lowerCAmelCase												=  F"""Problem in {fname}, both halves do not define the same objects.\n{errors[0]}"""
					failures.append('''\n'''.join(_lowerCamelCase			)			)
	if len(_lowerCamelCase			) > 0:
		raise ValueError('''\n\n'''.join(_lowerCamelCase			)			)




def __magic_name__	(				)					->						Optional[Any]:

	'''simple docstring'''




	lowerCAmelCase												=  []
	for path, directories, files in os.walk(_lowerCamelCase			):
		for folder in directories:
			# Ignore private modules
			if folder.startswith('''_'''			):
				directories.remove(_lowerCamelCase			)
				continue
			# Ignore leftovers from branches (empty folders apart from pycache)
			if len(list((Path(_lowerCamelCase			) / folder).glob('''*.py'''			)			)			) == 0:
				continue
			lowerCAmelCase												=  str((Path(_lowerCamelCase			) / folder).relative_to(_lowerCamelCase			)			)
			lowerCAmelCase												=  short_path.replace(os.path.sep,					'''.'''			)
			submodules.append(_lowerCamelCase			)
		for fname in files:
			if fname == "__init__.py":
				continue
			lowerCAmelCase												=  str((Path(_lowerCamelCase			) / fname).relative_to(_lowerCamelCase			)			)
			lowerCAmelCase												=  short_path.replace('''.py''',					''''''			).replace(os.path.sep,					'''.'''			)
			if len(submodule.split('''.'''			)			) == 1:
				submodules.append(_lowerCamelCase			)
	return submodules


UpperCAmelCase        =				[
    """convert_pytorch_checkpoint_to_tf2""",
    """modeling_flax_pytorch_utils""",
]




def __magic_name__	(				)					->						List[str]:

	'''simple docstring'''




	lowerCAmelCase												=  importlib.util.spec_from_file_location(
	    '''transformers''',					os.path.join(_lowerCamelCase,					'''__init__.py'''			),					submodule_search_locations=[PATH_TO_TRANSFORMERS],					)
	lowerCAmelCase												=  spec.loader.load_module()

	lowerCAmelCase												=  [
	    module
	    for module in get_transformers_submodules()
	    if module not in IGNORE_SUBMODULES and module not in transformers._import_structure.keys()
	]
	if len(_lowerCamelCase			) > 0:
		lowerCAmelCase												=  '''\n'''.join(F"""- {module}""" for module in module_not_registered			)
		raise ValueError(
		    '''The following submodules are not properly registered in the main init of Transformers:\n'''
		    F"""{list_of_modules}\n"""
		    '''Make sure they appear somewhere in the keys of `_import_structure` with an empty list as value.'''			)


if __name__ == "__main__":
					check_all_inits()
					check_submodules()




"""simple docstring"""






class 			lowercase					:






			def __init__(self  :	Dict			)       ->	List[Any]:





				"""simple docstring"""


				lowerCAmelCase												=  {}






			def 					UpperCAmelCase							(self  :	Union[str, Any]			)       ->	None:





				"""simple docstring"""


				print(self.vertex			)
				for i in self.vertex:
					print(SCREAMING_SNAKE_CASE_      ,''' -> '''      ,''' -> '''.join([str(SCREAMING_SNAKE_CASE_			) for j in self.vertex[i]]			)			)






			def 					UpperCAmelCase							(self  :	Optional[Any]      ,SCREAMING_SNAKE_CASE_  :	int      ,SCREAMING_SNAKE_CASE_  :	int			)       ->	None:





				"""simple docstring"""


				if from_vertex in self.vertex:
					self.vertex[from_vertex].append(SCREAMING_SNAKE_CASE_			)
				else:
					# else make a new vertex
					lowerCAmelCase												=  [to_vertex]






			def 					UpperCAmelCase							(self  :	List[str]			)       ->	None:





				"""simple docstring"""


				lowerCAmelCase												=  [False] * len(self.vertex			)

				# call the recursive helper function
				for i in range(len(self.vertex			)			):
					if not visited[i]:
						self.dfs_recursive(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)






			def 					UpperCAmelCase							(self  :	Optional[Any]      ,SCREAMING_SNAKE_CASE_  :	int      ,SCREAMING_SNAKE_CASE_  :	list			)       ->	None:





				"""simple docstring"""


				lowerCAmelCase												=  True

				print(SCREAMING_SNAKE_CASE_      ,end=''' '''			)

				# Recur for all the vertices that are adjacent to this node
				for i in self.vertex:
					if not visited[i]:
						self.dfs_recursive(SCREAMING_SNAKE_CASE_      ,SCREAMING_SNAKE_CASE_			)


if __name__ == "__main__":
					UpperCAmelCase        =				Graph()
					g.add_edge(0, 1)
					g.add_edge(0, 2)
					g.add_edge(1, 2)
					g.add_edge(2, 0)
					g.add_edge(2, 3)
					g.add_edge(3, 3)

					g.print_graph()
					print("""DFS:""")
					g.dfs()

					# OUTPUT:
					# 0  ->  1 -> 2
					# 1  ->  2
					# 2  ->  0 -> 3
					# 3  ->  3
					# DFS:
					#  0 1 2 3


